2005-339 - Laserfiche WebLink

Home Browse Search

PER. The subsurface investigation report will also be used as supporting documentation for the permit application to FDEP to be prepared and submitted in Task 5 . Should off- site improvements for effluent disposal be required, any additional subsurface investigations needed to develop a basis of design for these facilities will be performed as a supplemental service under an amendment to this Scope of Services . Task 5 - Preliminary Engineering Report In this task, a PER will be prepared addressing the wastewater treatment facility permitting requirements of Chapters 62- 604 and 62-620, Florida Administrative Code (FAC) . The PER will provide a master plan for build-out of the North Regional WWTF site over the long- term as well as recommendations for plant expansion to an AADF of 2 mgd in the short- term, consistent with the build-out plan. The PER will be based upon population and wastewater generation projections for the North Regional WWTF service area contained in the most recent update to Indian River County's Water and Wastewater Master Plan . The following work activities will be performed during preparation of the PER: Subtask 5 . 1 — Wastewater Process Design. Using current influent flows and loads to the North WWTP, a wastewater process model using BioWin0 will be developed. The BioWin® model will be used to size process units to achieve the County's treatment objectives at the North Regional WWTF both now and in the future . The facility will be designed to meet Class I reliability requirements and to produce an effluent that meets standards for public access reuse . Surface water discharge is not an option at the North Regional WWTF at this time . Residuals management will consist of aerated sludge holding, thickening and hauling to the County' s Central Regional WWTF for treatment. Subtask 5 . 2 — Site Master Plan. Based upon projections of future wastewater generation in the North Regional WWTF service area, an estimate of the capacity of the North Regional WWTF at build-out will be made . A site master plan will then be prepared for providing the required build-out capacity. The site master plan will take into account site buffers , land area requirements for on- site effluent storage and disposal, phased expansion of the North Regional WWTF in modular process trains , flexibility to modify treatment processes to achieve lower effluent limits , and County preferences for on- site administrative, operation and maintenance support facilities. The site master plan will also take into account the County's long-term objective of developing a pressurized public access reclaimed water reuse system and the plant modifications that could result from implementing such a system. Initial improvements at the North Regional WWTF to increase AADF capacity to 2 mgd will be consistent with the recommended long-term plan for build-out of the site . Initial improvements will be configured and sized to facilitate future expansions and upgrades . If possible , sufficient additional wet weather disposal capacity to support a 2-mgd plant will be provided on-site to avoid a costly effluent transmission system in the short-term. S: \041077\ IRC North Regional VAMF Expansion\Exhibit A_revl .doc